Key features and details
- Sensitivity: 10 pg/ml
- Range: 0.01 ng/ml - 1000 ng/ml
- Sample type: Cell culture extracts, Plasma, Serum, Tissue
- Detection method: Colorimetric
- Assay type: Competitive
Product name20 HETE ELISA Kit
Intra-assay Sample n Mean SD CV% Overall 12 = 0.3% Inter-assay Sample n Mean SD CV% Overall 12 = 0.78%
Sample typeSerum, Plasma, Cell culture extracts, Tissue
Sensitivity= 10 pg/ml
Range0.01 ng/ml - 1000 ng/ml
Assay durationMultiple steps standard assay
Abcam’s 20 HETE competitive in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the determination of 20 HETE (also known as 20-OH-AA) levels in biological samples. The specificity of the 20 HETE ELISA was investigated using authentic 20 HETE and a panel of fatty acids which, based on their structure, might be anticipated to compete with 20 HETE for binding to antibodies for 20 HETE. Anti-20 HETE did not cross-react with 14,15- and 11,12-DHETs, PGE2 and showed almost no cross-reactivity even with structurally extremely similar arachidonic acid (AA), linoleic acid and linolenic acid as shown in the competitive ELISA analysis. Considering the only difference between 20-HETE and AA is an oxygen molecule, the specificity of this kit is a surprise.
Human essential and salt-sensitive hypertensions were related to differential AA metabolism by cytochrome P450 (CYP) 4A which has AA-ω-hydroxylase (20 HETE synthesis) activity. Increased circulating insulin inhibits 20 HETE synthesis in obese hypertensive subjects.
Recently, CYP4F2 genetic variants, which increased urinary 20 HETE secretion, were found to be correlated with the risk for hypertension in a Chinese population.
This kit can be used for the determination of 20 HETE in serum, plasma, cells and tissues following proper isolation and purification.
Storage instructionsStore at -20°C. Please refer to protocols.
Components 1 x 96 tests 1000X 20-HETE HRP Conjugates 1 x 12µl 20-HETE Standard 1 x 2µl HRP Buffer 1 x 15ml Pre-Coated 96-Well Microplate 1 unit 10X Sample Dilution Buffer 1 x 25ml TMB Substrate 1 x 24ml 10X Wash Buffer Solution 1 x 25ml
- cytochrome P450,20-hydroxy-5Z,8Z,11Z,14Z-eicosatetraenoic acid
ab175817 has been referenced in 1 publication.
- Li H et al. Vascular Protection of TPE-CA on Hyperhomocysteinemia-induced Vascular Endothelial Dysfunction through AA Metabolism Modulated CYPs Pathway. Int J Biol Sci 15:2037-2050 (2019). PubMed: 31592228